Jointer head



Patented Mar. 15, 1927.

i VIRGUIVLQ'RQWHISLER,

or OTTUMWA, IOWA-1 A JOINTER' HEADL:

Ani object .of this sinNen-tionfis to'rapnovide improved @meansi-r for; mountingia cutting blade or knit' ffrernovably1 L and' ireplaceably inra:jointencheadxe .v 4 Y A"'fiirtlier; ob-'cct i ot :this sinvention'is fito. provide `iinprcweda imeansw for mounting; plurality not icuttingiblades or fkfnives removably:andrreplaceablyeinfwatjointerfhead;

' A? yfurth'eiwobject-1y of :thissinvention f yis to provide yimpromfed means for mountingn; a

'pluralityfof?cuttingvrbledesiaor rknivesf inf; a

cylindricalf 1 ointenz head, together with?. iinz-i proved? meansiffora adjusting. the: project-ion of i sadrblades Yrelative toi :the periphery f of said'headf MyinYentin consists in rzthe construction', arrangement fs and; f combination-fi ot elements' 1 hereinattersfseteforthg; pointed-1: out 3 inn the bore 11 byimeansf otiwhichusaidr fjointenlieadf vmayifbe mountedioniia'mandrel'orishat'; (not. shown) fior'use. :Tangentlal grooves, orzslots- 12'; :13 areeformed fain; andvlongitudinally of theehead/fflO; onr ioppositeosides oiizthewborcv11 and: :openinguthiougllh the @periph-ery ot, said; head.;, Clamping-"plates s 11i-,215s 'are mounted loosely inn ther` slots ori grooves? Thee.clanpig'aplates;14gV 15 are formed With concaved outer marginsV 16 and do not project at any time beyond the periphery of the head 10. Cutting blad-es 17, 18 are mounted-in the groovesorrslots 12,V 13 in' contact With Vthe radially-outer sides of the clamping plates 14, V15 and said blades are formed with cutting edges 19 on their outer' margins projecting through the peripheryr of the jointer head., Registering holes 20,

' 21 are Jformed in the-jolnter head 10 and vclamping plates 14, 15 and intersect the grooves y'or slots 12,713. The holes 21 in theV clampinge plates: sarei finternasllyq; threadedfi on f tappedfe andai; sphere@ vshaped4 seatsf; :225. are:

ormedfinfllotel'headffonftheOPPOSit'e side i 'y oi the1slotsrfromiaand'a irn registrationfiwitlfi larlyi spaced aparta'throughoututhe-:rlength Y of:1the:c-claiinpingizplatesi 1 Notches 23:41am

'formed fin-:and open-:sthrougliitheeinher :maisl ,gnsizot thefzcutting blades117,18 anddregisf L l terwith the"holes'2 0, 21 and-seats22i Heade less/'fY screws 24er,I-V arewmounted eth'rough;H the seatsy 22a Each@ screw: 24;;isizfonn1ed .Xvithf a sphere @shaped I outer endzyhavin gf; ai @hert c25 therein: andi f iisg-als@ formed@A with? :aa sphere shapede innen -endn1"engagfgng:A and bearing A Withim a :seat 22; f Eachscrewf-Qll i-s E threaded seat 122 ,theeouten fend@ thereof will suhstanftial-lys;y ilh au I holes 20;:1 Without( projections, through-f tiret-:periphery ofi l the jointen headandl also-@Without leavingfiroomafon i the aocire dental insertion! of ai linger fini saidV holefwhen' theejointerihead @is finamotiicnnfy I When; the screws `24:- ;aref seated :they react onf'thelseats 22 `fand. force? :the :clampingj plates? 14m radiallyV outward and cause'saidwplates:to

engage, and clamp; the cuttingiibladesfl, VV18 rigidly@ againstigthef- 'radialglfyfx i outer f .Walls ,I ot thefgrooues on'slots 12,;I13H. Sometimes-itis desirable toi adjust-i thel projection f oat -th-e blades-17,1@tangentially Iofthe,i} eriphe'ryot ai' l' y thefjointer ille'a'deandi te thatfenditangenti al I holes-2 6 iare :formed-fini@thefjointerahead-'in alignment With- .the transverse i-plane -oiand intersecting ,the-i-fgrdoves 'jorslots.; 12,913`

Notehes 27 are formed .-'ini the linner i portions YWithflthe, holesl. 26; jfl? suitable tool, 5suchias Aadpunclf28,-n1ay` Abefdriven @inwardly ot ,the holes 26 and engage the inner margin of one or the other of the cutting blades17,'18 and l move said blade outwardly,` theinner end ofthe punch entering notch 27 freely and notdisturbing the location vofor contacting With the vadjacent clamping plate. Thus, provision is made for adjusting the projection of the cutting edges 19 vafter the V"cutting blades have been, partially `tightened vin their Aseats and .preliminary to complete klocking thereof byv further: settingl of the vscrews 24; Tll1isfimprovement is employed inthe usual manner by rotation at' high y speed relative to a portion of wood passed over it on a divided table, as is common and well known. i

' I claim as my inventionl. A jointer head, comprising a cylindrical member adapted to be mounted for rof tation and formed with tangential slot-s opening through the periphery thereof, clamping plates and cutting blades mounted substantially parallel with each other in Y'said slot-s, the cutting blades being provided with lcutting edges projecting through the periphery of the' head, said head being formed with registering holes and seats, the planes of which intersect said slots, said clamping plates and cutting blades being formed with openings registering with said holes and` seats, the openings in the clampving plates being tapped, and screws mount- Vholes registering with the holes and seats in the support, cutting blades mounted in said slots and 'formed with notches registering with said holes andseats, and screws mountn ed in said holes of the support, extending Y through the notches in the cutting blades,

screwed through the holes in the clamping blades and engaging in said seats, said screws being adapted'to react on said seats to cause the clamping plates to engage and lclamp the cutting blades against the, outer walls of said slots* v 3. In'V a machine of the character described, a support, having slots opening to the surface thereof and formed withregstering holes and seats, the planes of which intersect said slots, clamping plates mounted in said'slots and formed with tapped holes registering with the holes and seats in the support, cutting blades mounted in said slots and formed Y withY notches registering with said holes and seats, and screws mounted in said holes of the support, extending through the notches in the cutting blades,

,screwed through the holes in the clamping vblades and engaging in said seats, saidV ing through the periphery thereof, clamp Y ing plates and cutting blades mountedsubstantially parallel with each other in said slots, the cutting blades being provided with cutting edges projecting through the periphery of the head, said head being formed with registering holes andk seats, the planes of which intersect said slots, said clamping plates and cutting blades being formed with openings registering with said holes and seats, t-he openings in the clamping plates being tapped, and screws mounted in said holes and extending through said openings into engagement with said seats. The jointer head also being formed with tangential holes in transverse alignment and intersecting said slots, the clampingplates also being formed with notches in their inner margins,

whereby a punch may be introduced throughv the latter holes and jengage the cutting `blades without Vmaterial contactlwith: the

clamping plates. Y f i 5. In a machine of the character Vdescribed, a jointerhead formed r with a slot and also formed with a hole on one side. and sphere shaped seat on the other side of said slot,`a clamping plate and a cutting blade being mounted in ksaid slot and formed with openings registering with said holeand seat, the opening in they clamping plate being tapped, and a screw mounted through the hole in the head andthe opening in the out? ting blade, screwed through the opening in therclamping plateV and engaging .in said seat, said screw 'being formed with a s pliere shaped end for engagement with. said seat and also formed with a sphere shaped outer end portion'having a lter't and adapted substantially to lill said hole in the head.

Signed at Ottumwa, in the county of Virapello and State-of Iowa, this. 4th day of June, 1925. l

VIRGIL l). IVHISLE'R. Y 

